The 2012 Low Carbon Racing Conference featured a presentation of all-electric racing prototype by Drayson Racing and Lola Group. These partners along with BAE Systems have been studying methods of incorporating advanced battery technology into the world of auto racing. BAE Systems has been critical in advancing electrical propulsion from the defense industry to racers in only a few years. The Lola-Drayson B12/69EV presented at the conference will not hit the raceway but representatives estimate that the design could lap traditional vehicles over short distances.
The heart of the B12/69EV is a Mavizen battery system combined with four electric motors. Mavizen used three A123 Systems lithium-ion batteries that hold 60kWh. This drive system can achieve a maximum output of 634kW based on lab simulations. The B12/69EV does not shift gears, using a single gear that ensures efficient energy transfer from the batteries to the electric motors. Mavizen’s work on this project builds on BAE Systems work on batteries that combine high capacity with operational efficiency. This research has yielded a battery design that works seamlessly with onboard electronics while keeping drivers competitive on the track.
Lola and Drayson Racing did not rest on their laurels when the drive system was engineered. Lola has worked with BAE Systems to streamline the vehicle body including a recycled composite body and smoother surfaces. The vehicle profile might not look distinct from the competition but aerodynamic changes allow the racer to handle corners at high speeds. The B12/69EV is recharged through a HaloIPT wireless system located underneath the vehicle that reduces refueling times during pit stops. Wireless charging also decreases costs and safety risks associated with refueling vehicles in the midst of high-speed races.
The Lola-Drayson B12/69EV might be overlooked as racing teams like Audi and Toyota are taking to the track with greener vehicles. This design concept isn’t slated for competition at present but the innovations should not be ignored. Racing teams are constantly searching for advantages on the competition including body design and drive system changes. The B12/69EV addresses the major concerns of racing teams through advancements like wireless charging and composite body construction. The popularity of the B12/69EV in industry circles could not only change auto racing but lead to design adaptation for the passenger vehicle market.
